Bilateral, Hyperdense Middle Cerebral Arteries Predict Bihemispheric Stroke - 07/08/11
, Lisa M. El-Hakam, MD †, ⁎ 
Department of Neurology, Baylor College of Medicine, Houston, Texas Communications should be addressed to: Dr. El-Hakam; Department of Pediatric Neurology, Baylor College of Medicine; Texas Children's Hospital; 6621 Fannin Street, CC 950.04; Houston, TX 77030-2399Résumé |
The hyperdense vessel sign is a debated topic in terms of its sensitivity and specificity for acute cerebral ischemia. Bilateral, hyperdense middle cerebral artery signs are rare presentations of bilateral cerebral infarction. We describe a 17-year-old boy with a history of cerebral palsy and a repaired atrial septal defect, presenting with lethargy and respiratory failure. Noncontrast computed tomography of the brain revealed bilateral, hyperdense middle cerebral artery signs, and he subsequently demonstrated bilateral cerebral infarctions in the distributions of the middle cerebral arteries. Hyperdense artery signs must alert physicians to evaluate patients for stroke, with an especially high index of suspicion for pediatric patients with hyperdense vessels, who are less likely to present with atherosclerotic disease causing vascular calcifications; rather, hyperdense artery signs could be an early sign of large-vessel thrombosis and cerebral infarction.
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Vol 39 - N° 5
P. 361-362 - novembre 2008 Retour au numéro
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